Basic information
- Name:
Urea, polymer with formaldehyde
- Superlist Name:
- Polynoxylin
- CAS No.:
9011-05-6
- Formula:
- (CH4N2O.CH2O)x
- Deleted CAS:
- 1339-64-6,9012-05-9,9012-53-7,9078-97-1,9082-43-3,11098-22-9,11098-23-0,11120-49-3,12425-51-3,12626-71-0,12765-43-4,25135-85-7,30940-65-9,37217-99-5,37335-14-1,37339-99-4,39283-00-6,39323-33-6,39327-95-2,39332-51-9,39393-24-3,50922-66-2,50926-54-0
- Synonyms:
- Micrea;KyliteKymene 435;S 40 (aminoplast);MM 54V;W 436;KS 35;VF Filler;Resimene X 980;U-Loid S 22;BU 286;U-Pearl C 122R;Kaurit 471;Acrisin FS 017;Diakol DM;Knittex TC;UA 143;Beckamine P 196M;Aerolite A 300;Moform 50;AL 3029;MPF 2;EMG;UM-G;KF 02;P 196-60;Polyfix UC 30M;Laropal A 101;A 2 (aminoplast);M 60 (formaldehyde polymer);
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*Required Fields
Chemistry
MF: (CH4N2O.CH2O)x
Synonyms: Urea formaldehyde; Urea resins; urea formaldehyde polymers; acrisinfs017; aerolite300; aerolitea300; aeroliteffd; agroform; amikol65; anaflex; basf; UREA, POLYMER with FORMALDEHYDE.
The Structure of UREA, POLYMER with FORMALDEHYDE(9011-05-6):
Synonyms: Urea formaldehyde; Urea resins; urea formaldehyde polymers; acrisinfs017; aerolite300; aerolitea300; aeroliteffd; agroform; amikol65; anaflex; basf; UREA, POLYMER with FORMALDEHYDE.
The Structure of UREA, POLYMER with FORMALDEHYDE(9011-05-6):
Uses
UREA, POLYMER with FORMALDEHYDE(9011-05-6) is used in the manufacture of fiberboard boards, foam boards, and bamboo wood adhesive.
UREA, POLYMER with FORMALDEHYDE(9011-05-6) is also used in the treatment of fabric and paper.
UREA, POLYMER with FORMALDEHYDE(9011-05-6) is used for making closures and buttons as commodity.
UREA, POLYMER with FORMALDEHYDE(9011-05-6) is used in wood, plywood, furniture, machinery repair and other wood material binder.
Production
Urea resins (9011-05-6) are formed by the reaction of urea with formaldehyde (Fig.1). Monomethylolurea (HOH2CNHCONH2) and dimethylolurea (HOH2CNHCONHCH2OH) are formed first under alkaline conditions. Continued reaction under acidic conditions gives a fairly linear, low-molecular-weight intermediate polymer.
A catalyst and controlled temperature are also needed and, since the amine may not be readily soluble in water or formalin at room temperature, it is necessary to heat it to about 80℃ to obtain the methylol compounds for many amine-formaldehyde resins.
FIGURE 1 Manufacture of urea-formaldehyde resins.
A catalyst and controlled temperature are also needed and, since the amine may not be readily soluble in water or formalin at room temperature, it is necessary to heat it to about 80℃ to obtain the methylol compounds for many amine-formaldehyde resins.
FIGURE 1 Manufacture of urea-formaldehyde resins.
Toxicity Data With Reference
| 1. | dnd-esc 3000 ppm | EESADV Ecotoxicology and Environmental Safety. 2 (1978),133. | ||
| 2. | orl-rat LD50:8394 mg/kg | GISAAA Gigiena i Sanitariya. 24 (5)(1959),71. | ||
| 3. | orl-mus LD50:6361 mg/kg | GISAAA Gigiena i Sanitariya. 24 (5)(1959),71. | ||
| 4. | orl-gpg LD:>2320 mg/kg | ANTCAO Antibiotics and Chemotherapy. 11 (1961),205. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Low toxicity by ingestion. Mutation data reported. When heated to decomposition it emits toxic vapors of NOx.
Risk Statements: 36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 26-36/37/39
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
Risk Statements: 36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 26-36/37/39
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39: Wear suitable protective clothing, gloves and eye/face protection